* {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

html {
  width: 100%;
  height: 100%;
}

body {
  width: 100%;
  height: 100%;
  background: #f0f2f5;
}

// 这里我稍微修改了一下
#loginDIV {
  height: 100vh;
  background-repeat: no-repeat;
  background-position: center 110px;
  background-size: 100%;

}

#loginDIV footer {
  position: absolute;
  bottom: 4%;
  left: 50%;
  margin-left: -170px;
  color: rgba(0,0,0,.45);;

}

.login {
  position: absolute;
  top: 50%;
  left: 50%;
  margin: -190px 0 0 -190px;
  width: 380px;
  height: 380px;
  padding: 36px;

  button {
    width: 100%;
    height: 45px;
    margin-top: 25px;
  }
  input {
    height: 40px;
    font-size: 15px;
    margin: 10px 0;

    line-height: 1.5;
    color: rgba(0, 0, 0, .65);
    background-color: #fff;
    background-image: none;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
  }
}

.logo {
  text-align: center;
  height: 40px;
  line-height: 40px;
  cursor: pointer;
  margin-bottom: 50px;

  img {
    width: 60px;
    margin-right: 20px;
    border-radius: 50%;
  }

  span {
    vertical-align: text-bottom;
    font-size: 24px;
    font-family: Exo, sans-serif;
    text-transform: uppercase;
    display: inline-block;

    background-image: -webkit-linear-gradient(left, #3498db, #f47920 10%, #d71345 20%, #f7acbc 30%,
    #ffd400 40%, #3498db 50%, #f47920 60%, #d71345 70%, #f7acbc 80%, #ffd400 90%, #3498db);
    color: transparent;
    -webkit-text-fill-color: transparent;
    -webkit-background-clip: text;
    background-size: 200% 100%;
    animation: masked-animation 4s infinite linear;
  }

  @keyframes masked-animation {
    0% {
      background-position: 0 0;
    }
    100% {
      background-position: -100% 0;
    }
  }
}



